Frances Shand Kydd, the long-suffering mom of Princess Diana, died yesterday following a long illness.

The 68-year-old grandmother of Princes William and Harry lived alone on the remote Scottish island of Seil.

In her tragedy-filled life, Kydd not only lost Diana in a 1997 Paris limo crash, but she also lost a baby son, hours after his birth, and a stepson, Adam Shand Kydd, 49, who overdosed on sleeping pills in April.

Kydd is survived by her son Earl Spencer and daughters Lady Jane Fellowes and Lady Sarah McQuorquodale.